The moving chapters about Roseanne Cash's glorious career and the moments of great tenderness and tension with her legendary family are like exquisite album tracks: Individually they are great reads, but together they add up to something cohesive and powerful. Composed provides no bombshell confessions about her failed marriage to Rodney Crowell or her wonderfully complicated relationship with her dad, Johnny. (Though she does dismiss the biopic Walk the Line as ''an egregious oversimplification of our family's private pain.'') Instead, Cash delivers writerly meditations on what it means to be an artist and a public person and, yes, a daughter. Rare is the celebrity memoir that is so full of self-awareness and dignity. A

